Auxiliary Contacts

Contacts are the conductive pieces of material that form part of an electrically controlled switch. Auxiliary contacts form part of a contactor, which is a type of switch that can be controlled remotely.

Contactors are often used in very high-power circuits, and auxiliary contacts are the last phase of contact, used to reduce the power of the current. They have a lower current rating than regular power contacts, and can be used to de-energise the contactor.

How do auxiliary contacts work?

Auxiliary contacts are affixed to the main contacts and change state when the main contacts do. They pass the data from the circuit to a logic controller, which in turn gives instructions to the linked devices about whether to turn on or off.

Alternatively, they can be used as a standalone hardware control unit.

What are auxiliary contacts used for?

One common usage of auxiliary contacts is in push button controllers, where they can be built in to the start button.


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Omschrijving Prijs Number of Contacts Normal State Configuration Range Mounting Style Contact Current Rating Contact Voltage Rating Pole and Throw Configuration Terminal Type Minimum Operating Temperature Maximum Operating Temperature Operating Temperature Range CAD Drawing Series Number of Timing Ranges
RS-stocknr. 711-6345
FabrikantnummerCA4-40E
FabrikantABB
€ 16,45
Each
Aantal stuks
4 4NO - Front Mount 6 A 600 V dc, 690 V ac 4P Screw - - - - CA4 -
RS-stocknr. 608-9009
FabrikantnummerLA1LC025
€ 78,95
Each
Aantal stuks
4 2NO/2NC, 3NO/NC - Side Mount - - 4P Screw - - - - LA1L -
RS-stocknr. 521-4585
Fabrikantnummer5ST3011
FabrikantSiemens
€ 19,90
Each
Aantal stuks
2 2NO Sentron DIN Rail Mount 6 A 230 V ac DP Screw -5°C +40°C -5 → +40 °C - 5ST3 -
RS-stocknr. 187-908
FabrikantnummerLADN11G
€ 11,10
Each
Aantal stuks
2 NO/NC - Front Mount 10 A 690 V ac DP Screw -5°C +60°C -5 → +60 °C - LADN -
RS-stocknr. 706-1891
Fabrikantnummer3RV2901-1F
FabrikantSiemens
€ 11,00
Each
Aantal stuks
2 2NO Sirius Innovation Plug In 1 A dc, 2.5 A ac 60 V dc, 230 V ac DP Screw -20°C +60°C -20 → +60 °C - - -
RS-stocknr. 394-9885
FabrikantnummerLADN31
€ 17,75
Each
Aantal stuks
4 3NO/NC TeSys Front Mount 10 A - 4P Screw -5°C +60°C - - LADN -
RS-stocknr. 758-478
FabrikantnummerK1 H010/A11-VE
FabrikantKraus & Naimer
€ 10,88
Each
Aantal stuks
2 NO/NC - - 40 A, 63 A - DP - - - - - - -
RS-stocknr. 246-4513
Fabrikantnummer3RH1921-1FA04
FabrikantSiemens
€ 13,40
Each
Aantal stuks
4 4NC Sirius Classic Front Mount 6 A - 4P Screw - - - - 3RH1 -
RS-stocknr. 746-0715
Fabrikantnummer3RH1921-1LA20
FabrikantSiemens
€ 14,50
Each
Aantal stuks
2 2NO Sirius Classic Snap Front - - DP Screw - - - - 3RH1 -
RS-stocknr. 513-0241
FabrikantnummerDILM150-XHI13
FabrikantEaton
€ 13,76
Each
Aantal stuks
4 NO/3NC - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac 4PST Screw - - - - DILM -
RS-stocknr. 711-6329
Fabrikantnummer1SBN010110R1001
FabrikantABB
€ 4,10
Each
Aantal stuks
1 NC - Front Mount 6 A 600 V dc, 690 V ac SP Screw - - - - CA4 -
RS-stocknr. 502-187
Fabrikantnummer100-KFC20
FabrikantAllen Bradley
€ 7,93
Each
Aantal stuks
2 2NO - Snap-On 12 A - DPST Screw - - - - 100K -
RS-stocknr. 608-8983
FabrikantnummerLA1LC010
€ 153,61
Each
Aantal stuks
6 5NO/NC - Side Mount - - 6P Screw - - - - LA1L -
RS-stocknr. 746-0783
Fabrikantnummer3RH2911-1GA04
FabrikantSiemens
€ 15,60
Each
Aantal stuks
4 4NC Sirius Innovation Snap Front 10 A 600 V dc, 690 V ac 4P Screw - - -25 → +60 °C - 3RH2 -
RS-stocknr. 685-1517
FabrikantnummerBFX1022
FabrikantLovato
€ 10,28
Each
Aantal stuks
4 2NO/2NC - Snap-On - - - Screw - - - - - -
RS-stocknr. 608-8781
FabrikantnummerGV7AE11
€ 41,53
Each
Aantal stuks
1 NO/NC - - - 250 V dc, 690 V ac SPDT Screw - - - - GV7A -
RS-stocknr. 400-1401
FabrikantnummerGVAM11
€ 16,95
Each
Aantal stuks
1 NO/NC - Side Mount - - SPDT Screw - - - - GVAM -
RS-stocknr. 706-0885
Fabrikantnummer3RH2911-1FA40
FabrikantSiemens
€ 15,60
Each
Aantal stuks
4 4NO Sirius Innovation Snap-On 6 A dc, 10 A ac 250 V dc, 690 V ac 4PST Screw -25°C +60°C -25 → +60 °C - 3RH2 -
RS-stocknr. 493-0674
FabrikantnummerDILA-XHI31
FabrikantEaton
€ 13,76
Each
Aantal stuks
4 3NO/NC - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac 4PST Screw - - - - DILA -
RS-stocknr. 395-0138
FabrikantnummerGVAE20
€ 11,60
Each
Aantal stuks
2 2NO - Front Mount - 60 V dc, 240 V ac DP Screw - - - - GVAE -
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